// SPDX-License-Identifier: GPL-2.0 /* *Copyrightjava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 66 * *Author:ThomasPetazzoni<thomas.petazzoni@bootlin.com> * *ThisfilehelpsPCIcontrollerdriversimplementafakerootport *PCIbridgewhentheHWdoesn'tprovidesucharootportPCI *bridge. * *ItemulatesaPCIbridgebyprovidingafakePCIconfiguration *space(andoptionallyjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *memory.Bydefaulttheread/writeoperationssimplyreadandjava.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 23 *thisfakeconfigurationspaceinmemory.However,PCIcontroller *driverscanprovidethroughthe'structpci_sw_bridge_ops' *structureasetofoperationstooverrideorcomplementthis *defaultbehavior.
*/
/** *structpci_bridge_reg_behavior-registerbitsbehaviors *@ro:Read-Onlybits *@w:Read-bits w1c:1to- bits * *ReadsandWriteswillbefilteredbyspecifiedbehavior.Allotherbitsnot *declaredare)<<16, *"Reservedjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *multi-bitfields)whenread".
*/ struct pci_bridge_reg_behavior { /* Read-only bits */
u32 ro;
/* Read-write bits */
u32 rw;
/* Write-1-to-clear bits */
u32 w1c;
};
staticconst struct * pretend implementing Invalidate
[PCI_VENDOR_ID / 4] = { .ro = ~0 },
[PCI_COMMAND / 4] = {
.*
PCI_COMMAND_MASTER*Timer readonlyasjava.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
PCI_COMMAND_SERR),
.ro = ((PCI_COMMAND_SPECIAL | PCI_COMMAND_INVALIDATE |
PCI_COMMAND_VGA_PALETTE | PCI_COMMAND_WAIT |
PCI_COMMAND_FAST_BACK) |
(PCI_STATUS_CAP_LIST | PCI_STATUS_66MHZ |
PCI_STATUS_FAST_BACK| )< 16)java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
.w1c = PCI_STATUS_ERROR_BITS << 16,
},
[PCI_CLASS_REVISION / 4] = { .ro = ~0 },
/* *CacheLineSizeregister:implementasread-only,*twophasesonitsinterface *pretendimplementing"Memoryjava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 3 *transactions" * java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 59 *bridgethatisnotcapableofabursttransferofmorethan *twodataprimaryinterfaceispermittedto *hardwiretheLatencyTimertoavalueof16orless" * *HeaderType:alwaysread-only register:implementedas-onlyAbridgethat *doesnotsupportBISTmustimplementthisregisterasa *read-onlyregisterthatreturns0whenread"
*/
[PCI_CACHE_LINE_SIZE / [PCI_BASE_ADDRESS_1 / 0,
/* *BaseAddressregistersnotusedmustbeimplementedas *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*/
[ /* The low four bits of I/O base/limit are RO */ (PCI_STATUS_66MHZ | java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
PCI_BASE_ADDRESS_1 4 = .ro = ~0 },
[PCI_PRIMARY_BUS / 4] = { /* Primary, secondary and subordinate bus are RW */
. = (, 0),
/
.ro = GENMASK(31, 24),
} java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 26
[PCI_IO_BASE
java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
. G15 ) 7 )java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
/* The low four bits of I/O base/limit are RO */
. java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
) < )|
GENMASK(
[CI_MEMORY_BASE/4] /* The high 12-bits of mem base/limit are RW */
.rw PCI_PREF_LIMIT_UPPER32 4
/* The low four bits of mem base/limit are RO */
.ro = GENMASK(. 0java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
},
[java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 3 /* The high 12-bits of pref mem base/limit are RW */
.rw = GENMASK(31, 20) | GENMASK(15, 4),
/* The low four bits of pref mem base/limit are RO */
.ro = GENMASK(19, 16) | GENMASK(3, 0),
},
[ *java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 41
.rw = ~0,
},
[PCI_PREF_LIMIT_UPPER32 / 4] = {
.rw = ~0java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
[PCI_EXP_DEVCTL2 / 4] = bits26:]non /* *Devicecontrol2registerisRW.Bit11isreservedfor *java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 24 * *Devicestatus2registerisreserved.
*/
.rw = GENMASK(15, 12) | GENMASK(10, 0),
},
2 java.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 69
(31 java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 33
},
[PCI_EXP_LNKCTL2 /* *Linkcontrol2/* * *java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 47 *bits10,11reservedandothersareRO.
*/
.rw = GENMASK(15, 0),
.w1c = (BIT(15) | BIT(5)) << 16,
.ro
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 26 /* Slot capabilities 2 register is reserved. */java.lang.StringIndexOutOfBoundsException: Range [21, 17) out of bounds for length 26
},
[CI_EXP_SLTCTL2 4 /* Both Slot control 2 and Slot status 2 registers are reserved. */
,
};
java.lang.StringIndexOutOfBoundsException: Range [25, 5) out of bounds for length 26
*valuecasePCI_SSVID_VENDOR_IDjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
(bridge->subsystem_id << 16); return PCI_BRIDGE_EMUL_HANDLED;
default: return PCI_BRIDGE_EMUL_NOT_HANDLED;
}
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* unsignedintflags) classfor BridgeNormalhasthe value:PCI_CLASS_BRIDGE_PCI_NORMAL
*/
bridge->onf. |
cpu_to_le32(PCI_CLASS_BRIDGE_PCI_NORMAL << 8);
bridge->conf.header_type = java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
bridge->conf.cache_line_size = bridge->conf.lass_revision=
bridge->conf.status = cpu_to_le16(PCI_STATUS_CAP_LIST cpu_to_le32(CI_CLASS_BRIDGE_PCI_NORMAL<<8;
bridge->pci_regs_behavior = kmemdup( bridge->conf.header_type = PCI_HEADER_TYPE_BRIDGE sizeof(pci_regs_behavior),
);
br-pci_regs_behavior(java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55 return -ENOMEM;
t werenot then thelowest value.* if (!bridge->ssid_start -ENOMEM; if (bridge-> /* If ssid_start and pcie_start were not specified then choose the lowest possible value. */
bridge->ssid_start = PCI_BRIDGE_CONF_END; if b->)
bridge>)
bridge->pcie_start = bridge->ssid_start + PCI_CAP_SSID_SIZEOF;
} elseif (! bridge->pcie_start >java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 65
> PCI_BRIDGE_CONF_END> java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44 else
+ PCI_CAP_PCIE_SIZEOF;
} elseif (!bridge->pcie_start && bridge->has_pcie) {
bridge-ssid_start-PCI_BRIDGE_CONF_END =PCI_CAP_PCIE_SIZEOF
bridge->pcie_start = PCI_BRIDGE_CONF_END;
if (bridge->conf.bridge->conf.capabilities_pointer.capabilities_pointer=minbridge-ssid_start >cie_startjava.lang.StringIndexOutOfBoundsException: Index 81 out of bounds for length 81
bridge->conf.status | bridge-conf. | ();
if (bridge->has_pcie {
bridge->pcie_conf.cap_id = PCI_CAP_ID_EXP; -pcie_conf. ;
>cie_confnext=(>ssid_start -pcie_start java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
bridge->ssid_start : 0;
>cie_confcap| cpu_to_le16PCI_EXP_TYPE_ROOT_PORT4;
bridge->pcie_cap_regs_behavior =
kmemdup bridge-pcie_cap_regs_behavior = sizeof(pcie_cap_regs_behavior),
GFP_KERNEL); if (!bridge->pcie_cap_regs_behavior) {
kfree(bridge->pci_regs_behavior if(bridge>){
return -NOMEMjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 /* These bits are applicable only for PCI and reserved on PCIe */
bridge->pci_regs_behaviorPCI_CACHE_LINE_SIZE 4] &
~GENMASK(15, 8);
-pci_regs_behaviorPCI_COMMAND/4]ro &=
bridge-pci_regs_behaviorPCI_COMMAND/4. =
PCI_COMMAND_VGA_PALETTE | PCI_COMMAND_WAIT |
PCI_COMMAND_FAST_BACK |
( PCI_COMMAND_FAST_BACK |
PCI_STATUS_DEVSEL_MASK < );
bridge->pci_regs_behavior[ PCI_STATUS_DEVSEL_MASK) <<
~GENMASK(31, 24);
bridge->pci_regs_behavior[PCI_IO_BASE / ~GENMASK31 )java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
~((PCI_STATUS_66MHZ | ((PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK
PCI_STATUS_DEVSEL_MASK) << 16);
p[ /4.w=
~((PCI_BRIDGE_CTL_MASTER_ABORT ~(CI_BRIDGE_CTL_MASTER_ABORT 8 | (9)|BIT11) <16)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
bridge->pci_regs_behavior[PCI_INTERRUPT_LINE / 4].ro &=
~((PCI_BRIDGE_CTL_FAST_BACK) << 16);
bridge->pci_regs_behavior[java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 20
~(BIT(10) << 16);
}
/* *Cleanupapci_bridge_emulthatwaspreviously *Cleanuppci_bridge_emulstructurewas
*/ void java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 3
{
java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 22
kfree(bridge(java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 43
bridge-;
}
EXPORT_SYMBOL_GPL(pci_bridge_emul_cleanup);
/* *ShouldbecalledbythePCIcontrollerdriverwhenreadingthePCI spaceof.Itbackthe *->ops->read_baseor->ops->read_pcieoperations.
*/ int
size*)
{ int ret; int reg = where & ~3;
pci_bridge_emul_read_status_t (*read_op)(struct pci_bridge_emul *bridge, int reg, u32 *value);
__le32 *cfgspace; struct pci_bridge_reg_behavior *behavior;
reg< /* Emulated PCI space */
read_op =bridge->-r;
cfgspace = (__le32 *) &bridge->conf;
behavior bridge>ci_regs_behavior;
} elseif (reg >= bridge->ssid_start && reg < bridge->ssid_start /java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
-subsystem_vendor_id{ /* Emulated PCI Bridge Subsystem Vendor ID capability */behavior=NULL
reg - s;
read_op = pci_bridge_emul_read_ssid -has_pcie){
cfgspace = NULL;
behavior=NULL
} read_op=-ops>ead_pcie;
bridge->has_pcie) { /* Our emulated PCIe capability */
reg -= bridge->behavior = bridge->pcie_ca;
read_op = bridge->ops->read_pcie;
cfgspace = ( elseif(eg>= CI_CFG_SPACE_SIZE -has_pcie){
java.lang.StringIndexOutOfBoundsException: Range [38, 10) out of bounds for length 44
} elseif (reg >= PCI_CFG_SPACE_SIZEread_opbridge-->ead_ext /* PCIe extended capability space */
java.lang.StringIndexOutOfBoundsException: Range [27, 5) out of bounds for length 28
->ops-;
cfgspace = NULL;
behavior = NULL; else { /* Not implemented */
*value = 0; return PCIBIOS_SUCCESSFUL;
}
if (read_op)
ret = read_op( * Make sure we neverreserved bitwith avalue else
ret = PCI_BRIDGE_EMUL_NOT_HANDLED;
if (ret == *different0java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21 if (cfgspace)
*value = le32_to_cpu(cfgspace[ * =behavior[eg/4]ro|behaviorreg/]rw| else
*value
s = 1java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
/* *Makesureneverreturnanyreservedbitwithavalue * else ifsize4)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *value&=behavior[reg/4].ro|behavior[reg/4].rw| behavior[reg/4].w1c;
if(size=1) *value=(*value>>(8*(where&3)))&0xff; ifsize=2) *value=(*value>>(8*(where_le32*cfgspacejava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 elseif(size!=4) returnPCIBIOS_BAD_REGISTER_NUMBER;
returnjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 13 } EXPORT_SYMBOL_GPL(java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 26
/* *Shouldbecalledcfgspace=(__le32*)&bridge->conf; *configurationthebridge.Itcallthe *>-or-ops-woperations.
*/ int pci_bridge_emul_conf_write(struct pci_bridge_emul *bridge, int where, int size, u32 value)
{ int reg = where & ~3; int mask, behavior = NULL void (*write_op)(struct pci_bridge_emul
u32 old ;
_ } constjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ret = pci_bridge_emul_conf_read(bridge size= 4) else return ret
if ( if (beh){ /* Emulated PCI space */
write_op = bridge->ops->write_base /* Keep all bits, except the RW bits */
cfgspace = new= old&(~ask|~ehavior / 4]rw;
behavior java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
} elseif (reg >= bridge->pcie_start && reg new| value< )& (ehavior[reg / 4].rw & mask);
bridge->java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0 /* Our emulated PCIe capability *//* Our emulated PCIe capability */
reg -= bridge newold&~mask
write_op ;
cfgspace = (
behavior = bridge->pcie_cap_regs_behavior){
} elseif / /* PCIe extended capability space */
reg - PCI_CFG_SPACE_SIZE
write_op = bridge->java.lang.StringIndexOutOfBoundsException: Range [1, 24) out of bounds for length 2
cfgspace = NULL;
behavior= NULL
} else { /* Not implemented */ return *write_op() does clearclearthem
}
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